t. rex gallatin and assembled it in a computer.atin based on a dissection work we'd donald crocodiles and birds, and produced an anatomically realistic model. we gave it to a simulator which uses artificial intelligence to try and work out how such animal could have moved. initially, we got quite good speeds, it can run at about 18mph. but then we realised, the forces it was applying to the skeleton were just too high, and that a t. rex running at 18mph would probably have shattered its legs. in terms of what the implications of that are, what does that mean? was t. rex then have struggled against fellow predators? if it wasn't quite as fast as we thought? the thing is, we think most of the predators of that sort of size would probably have been quite similar in terms of their speed. what it really means is that t. rex wasn't chasing down prey for itself. that maybe it was more of a scavenger oi’ that maybe it was more of a scavenger or more of an that maybe it was more of a scavenger or more of an ambush hunter, which didn't rely